Perhaps you should try some spelling variations:
"implementing means algorithm" » "implementing search algorithm" (Expand Search), "implemented means algorithm" (Expand Search)
"level using algorithm" » "level cosine algorithm" (Expand Search), "level fusion algorithm" (Expand Search)
"element two algorithms" » "element _ algorithms" (Expand Search), "elements two algorithms" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("implementing means algorithm") OR ("element two algorithms"))) OR ("level using algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"implementing means algorithm\") OR (\"element two algorithms\"))) OR (\"level using algorithm\"))".
• Removing quotes may allow a broader search: (((( implementing means algorithm ) OR ( element two algorithms ))) OR ( level using algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("implementing means algorithm") OR ("element two algorithms"))) OR ("level using algorithm"))*.